8 channels of high performance RS232 / RS422 / RS485 serial interface; Programmable baud rates up to 460.8kbaud; 64 (128) byte receive FIFO and 64 (128) byte transmit FIFO per channel, programmable trigger levels for FIFO's; ESD protected RS232 / RS422 / RS485 line driver/receiver up to 15KV according to IEC1000-4-2; HD50 SCSI-2 type connector mounted in front panel and P14 I/O; Operating temperature 0°C to +70°C (TPMC866-10x/-11x/-12x) and -40°C to +85°C (TPMC866-xx-ET)

16 channels of high performance RS232 / RS422 serial interface; Programmable baud rates up to 460.8kbaud; 64 byte receive FIFO and 64 byte transmit FIFO per channel, programmable trigger levels for FIFO's; ESD protected RS232 / RS422 line driver/receiver up to 15KV according to IEC1000-4-2; all signals on HD68 SCSI-3 type connector in front panel and P14 I/O; Operating temperature 0°C to +70°C (TPMC868-10x/-11x) and -40°C to +85°C (TPMC868-xx-ET)